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WO2009060349A3 - Protection of hygroscopic scintillators - Google Patents

Protection of hygroscopic scintillators Download PDF

Info

Publication number
WO2009060349A3
WO2009060349A3 PCT/IB2008/054492 IB2008054492W WO2009060349A3 WO 2009060349 A3 WO2009060349 A3 WO 2009060349A3 IB 2008054492 W IB2008054492 W IB 2008054492W WO 2009060349 A3 WO2009060349 A3 WO 2009060349A3
Authority
WO
WIPO (PCT)
Prior art keywords
protection
scintillator
hygroscopic
hermetic
scintillators
Prior art date
Application number
PCT/IB2008/054492
Other languages
French (fr)
Other versions
WO2009060349A2 (en
Inventor
Cornelis R. Ronda
Guenter Zeitler
Herbert Schreinemacher
Original Assignee
Koninklijke Philips Electronics N.V.
Philips Intellectual Property & Standards Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V., Philips Intellectual Property & Standards Gmbh filed Critical Koninklijke Philips Electronics N.V.
Priority to EP08847911A priority Critical patent/EP2220515A2/en
Priority to CN200880114997A priority patent/CN101849198A/en
Priority to US12/741,212 priority patent/US8373130B2/en
Publication of WO2009060349A2 publication Critical patent/WO2009060349A2/en
Publication of WO2009060349A3 publication Critical patent/WO2009060349A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/20—Measuring radiation intensity with scintillation detectors
    • G01T1/2018—Scintillation-photodiode combinations
    • G01T1/20188—Auxiliary details, e.g. casings or cooling
    • G01T1/20189—Damping or insulation against damage, e.g. caused by heat or pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/20—Measuring radiation intensity with scintillation detectors
    • G01T1/2002—Optical details, e.g. reflecting or diffusing layers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/20—Measuring radiation intensity with scintillation detectors
    • G01T1/2018—Scintillation-photodiode combinations
    • G01T1/20183—Arrangements for preventing or correcting crosstalk, e.g. optical or electrical arrangements for correcting crosstalk
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/20—Measuring radiation intensity with scintillation detectors
    • G01T1/2018—Scintillation-photodiode combinations
    • G01T1/20185—Coupling means between the photodiode and the scintillator, e.g. optical couplings using adhesives with wavelength-shifting fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/20—Measuring radiation intensity with scintillation detectors
    • G01T1/202—Measuring radiation intensity with scintillation detectors the detector being a crystal

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Measurement Of Radiation (AREA)

Abstract

A radiation detector (100) includes an array of scintillator pixels (102) in optical communication with a photosensor. The scintillator pixels (102) include a hygroscopic scintillator (104) and one or more hermetic covers (106a, 106b). A desiccant (124) may be disposed between a hermetic cover (106a) and the scintillator (104) or between the hermetic covers (106a, 106b).
PCT/IB2008/054492 2007-11-09 2008-10-29 Protection of hygroscopic scintillators WO2009060349A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08847911A EP2220515A2 (en) 2007-11-09 2008-10-29 Protection of hygroscopic scintillators
CN200880114997A CN101849198A (en) 2007-11-09 2008-10-29 Protection of hygroscopic scintillators
US12/741,212 US8373130B2 (en) 2007-11-09 2008-10-29 Protection of hygroscopic scintillators

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US98678507P 2007-11-09 2007-11-09
US60/986,785 2007-11-09

Publications (2)

Publication Number Publication Date
WO2009060349A2 WO2009060349A2 (en) 2009-05-14
WO2009060349A3 true WO2009060349A3 (en) 2009-09-24

Family

ID=40626277

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/054492 WO2009060349A2 (en) 2007-11-09 2008-10-29 Protection of hygroscopic scintillators

Country Status (4)

Country Link
US (1) US8373130B2 (en)
EP (1) EP2220515A2 (en)
CN (2) CN101849198A (en)
WO (1) WO2009060349A2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5178900B2 (en) * 2010-11-08 2013-04-10 富士フイルム株式会社 Radiation detector
US9281422B2 (en) * 2011-03-24 2016-03-08 Koninklijke Philips N.V. Spectral imaging detector
US20130009066A1 (en) * 2011-07-06 2013-01-10 Siemens Aktiengesellschaft Block Detector With Variable Microcell Size For Optimal Light Collection
US8415628B1 (en) * 2011-10-31 2013-04-09 General Electric Company Hermetically sealed radiation detector and methods for making
US8866089B2 (en) 2011-12-30 2014-10-21 Saint-Gobain Ceramics & Plastics, Inc. Scintillator pixel array
US8901501B2 (en) 2011-12-30 2014-12-02 Saint-Gobain Ceramics & Plastics, Inc. Scintillation detection device with an encapsulated scintillator
US9052399B2 (en) * 2011-12-30 2015-06-09 Saint-Gobain Ceramics & Plastics, Inc. Scintillator pixel array with reduced cross talk
JP6000680B2 (en) * 2012-06-20 2016-10-05 キヤノン株式会社 Radiation detection apparatus, manufacturing method thereof, and imaging system
WO2015071471A1 (en) * 2013-11-15 2015-05-21 Koninklijke Philips N.V. Double-sided organic photodetector on flexible substrate
GB201405556D0 (en) * 2014-03-27 2014-05-14 Kromek Ltd Neutron detection
US9513383B1 (en) 2015-06-03 2016-12-06 Perkinelmer Holdings, Inc. Scintillator sealing with foil
CN210442511U (en) 2015-11-13 2020-05-01 菲力尔探测公司 Dose Rate Measurement System
US10823875B2 (en) * 2015-11-24 2020-11-03 Schlumberger Technology Corporation Scintillator packaging for oilfield use
CN106653778B (en) * 2016-12-29 2024-03-01 同方威视技术股份有限公司 Radiation detector assembly and method of manufacturing the same
JP2020529607A (en) 2017-08-03 2020-10-08 ザ・リサーチ・ファウンデーション・フォー・ザ・ステイト・ユニヴァーシティ・オブ・ニューヨーク Dual screen digital radiation imaging with asymmetric reflective screen
CN113614574B (en) * 2019-03-29 2025-03-14 深圳帧观德芯科技有限公司 Radiation detector with scintillator
CN120019300A (en) * 2022-09-27 2025-05-16 赛默飞世尔科学测量技术有限公司 Radiation detector and method of constructing a radiation detector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5132539A (en) * 1991-08-29 1992-07-21 General Electric Company Planar X-ray imager having a moisture-resistant sealing structure
JPH0560871A (en) * 1991-09-04 1993-03-12 Hamamatsu Photonics Kk Radiation detection element
US20030127600A1 (en) * 2002-01-09 2003-07-10 Habib Vafi Scintillator sealing for solid state X-ray detector
WO2007046010A2 (en) * 2005-10-20 2007-04-26 Universidade Do Minho X-ray imaging matrix with light guides and intelligent pixel sensors, radiation or high energy particle detector devices that contain it, its fabrication process and its use

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5179284A (en) * 1991-08-21 1993-01-12 General Electric Company Solid state radiation imager having a reflective and protective coating
US5614721A (en) * 1995-12-13 1997-03-25 Optoscint, Inc. Modular gamma camera plate assembly with enhanced energy detection and resolution
DE19723067C1 (en) 1997-06-02 1998-12-24 Siemens Ag Large cast scintillator crystal with protective cap
JP3789646B2 (en) * 1998-06-19 2006-06-28 浜松ホトニクス株式会社 Radiation image sensor
JP4447752B2 (en) * 2000-08-03 2010-04-07 浜松ホトニクス株式会社 Radiation detector
US6657201B2 (en) 2001-06-29 2003-12-02 General Electric Company Cover plate having spacer lip with hermetic barrier for radiation imager and method of manufacturing same
US6470594B1 (en) 2001-09-21 2002-10-29 Eastman Kodak Company Highly moisture-sensitive electronic device element and method for fabrication utilizing vent holes or gaps
US7126130B2 (en) 2001-12-06 2006-10-24 General Electric Company Direct scintillator coating for radiation detector assembly longevity
FR2847594B1 (en) 2002-11-27 2004-12-24 Saint Gobain Cristaux Detecteu PREPARATION OF RARE EARTH HALIDE BLOCKS
JP2004271333A (en) 2003-03-07 2004-09-30 Hamamatsu Photonics Kk Scintillator panel, image sensor and energy discriminator
US6898265B1 (en) * 2003-11-20 2005-05-24 Ge Medical Systems Global Technology Company, Llc Scintillator arrays for radiation detectors and methods of manufacture
EP1605472A1 (en) 2004-06-10 2005-12-14 Konica Minolta Medical & Graphic, Inc. Radiation image conversion panel
US7550729B2 (en) 2005-07-06 2009-06-23 Saint-Gobain Ceramics & Plastics, Inc. Scintillator-based detectors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5132539A (en) * 1991-08-29 1992-07-21 General Electric Company Planar X-ray imager having a moisture-resistant sealing structure
JPH0560871A (en) * 1991-09-04 1993-03-12 Hamamatsu Photonics Kk Radiation detection element
US20030127600A1 (en) * 2002-01-09 2003-07-10 Habib Vafi Scintillator sealing for solid state X-ray detector
WO2007046010A2 (en) * 2005-10-20 2007-04-26 Universidade Do Minho X-ray imaging matrix with light guides and intelligent pixel sensors, radiation or high energy particle detector devices that contain it, its fabrication process and its use

Also Published As

Publication number Publication date
CN101849198A (en) 2010-09-29
CN104330816A (en) 2015-02-04
EP2220515A2 (en) 2010-08-25
WO2009060349A2 (en) 2009-05-14
US20100276600A1 (en) 2010-11-04
US8373130B2 (en) 2013-02-12

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